It seems as though the past builds still had issues on Windows. Mook was kind enough to get be a stack of the hang on shutdown folks were seeing, and I’ve modified the code to avoid making that happen (still not sure why it happened, but I know how it could get there – bug is filed). Without further delay, here’s an add-on that you can try out with the latest fixes in! I’ve been told on irc that this one works much better on Windows.